Go to the Apple  menu and choose ‘System Preferences’.Find the IPSW file that you downloaded earlier, select it and click Open.Hold down Shift (PC) or Option (Mac) and click the Restore button.Select the version of iOS you wish to download.You’ll just need to use xcode-select on the command line to switch between them whenever you go from, for example, Xcode 9 back to Xcode 8.ĭowngrade iOS: Where to find old iOS versions Can I have 2 versions of Xcode on my Mac?ĭespite what you may have heard, it is possible to have multiple versions of Xcode installed at the same time without using any special tools or apps. If you’re using Mac OS High Sierra, you are required to use Xcode 10.1 for compatibility. Xcode 12 will not work in High Sierra (10.13). Click on the Update button to the right of the entry.In the App Store app, click on Updates at the top of the app.Click on the  menu, select About this Mac, and then in the Overview section, click the Software Updatebutton.How to install the macOS High Sierra 10.13. After downloading the archive, unpack it. You will now be able to dowload older and newer versions Xcode, including betas and RCs. Then write Xcode in the left column’s search bar. Open and login with your developer account. How do I run an older version of Xcode on Mac? Follow these steps: Download Xcode 10.2 via this link (you need to be signed in with your Apple Id): and install it.

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